package com.chy.gulimall.auth;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.cloud.openfeign.EnableFeignClients;
import org.springframework.session.data.redis.config.annotation.web.http.EnableRedisHttpSession;

/**
 * 核心原理
 * 1) @EnableRedisHttpSession导入RedisHttpSessionConfiguration配置
 *      1. 给容器中添加了一个组件
 *          SessionRepository ==>>> RedisOperationsSessionRepository：redis操作session。session的增删改查封装类
 *      2. SessionRepositoryFilter ==> Filter： session 存储过滤器：每个请求过来都必须经过filter
 *          1. 创建的时候，就自动从容器中获取到了SessionRepository
 *          2. 原始的request，response都被包装 SessionRepositoryRequestWrapper， SessionRepositoryResponseWrapper
 *          3. 以后获取session。request.getSession();
 *          4. wrappedRequest.getSession(); ===> SessionRepository中获取到的
 *
 *  装饰者模式
 *
 *  自动延期：redis中的数据也是有过期时间
 */
@EnableRedisHttpSession // 整合redis作为session存储
@EnableFeignClients
@EnableDiscoveryClient
@SpringBootApplication
public class GulimallAuthServerApplication {

    public static void main(String[] args) {
        SpringApplication.run(GulimallAuthServerApplication.class, args);
    }

}
